SUSE: Security Advisory for krb5 (SUSE-SU-2015:0290-2)

# Copyright (C) 2015 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.851052");
  script_version("2022-07-05T11:37:00+0000");
  script_tag(name:"last_modification", value:"2022-07-05 11:37:00 +0000 (Tue, 05 Jul 2022)");
  script_tag(name:"creation_date", value:"2015-10-16 18:59:37 +0200 (Fri, 16 Oct 2015)");
  script_cve_id("CVE-2014-5351", "CVE-2014-5352", "CVE-2014-9421", "CVE-2014-9422", "CVE-2014-9423");
  script_tag(name:"cvss_base", value:"9.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_tag(name:"qod_type", value:"package");
  script_name("SUSE: Security Advisory for krb5 (SUSE-SU-2015:0290-2)");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'krb5'
  package(s) announced via the referenced advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"MIT kerberos krb5 was updated to fix several security issues and bugs.

  Security issues fixed: CVE-2014-5351: The kadm5_randkey_principal_3
  function in lib/kadm5/srv/svr_principal.c in kadmind in MIT Kerberos 5
  (aka krb5) sent old keys in a response to a -randkey -keepold request,
  which allowed remote authenticated users to forge tickets by leveraging
  administrative access.

  CVE-2014-5352: In the MIT krb5 libgssapi_krb5 library, after
  gss_process_context_token() is used to process a valid context deletion
  token, the caller was left with a security context handle containing a
  dangling pointer.  Further uses of this handle would have resulted in
  use-after-free and double-free memory access violations. libgssrpc server
  applications such as kadmind were vulnerable as they can be instructed to
  call gss_process_context_token().

  CVE-2014-9421: If the MIT krb5 kadmind daemon receives invalid XDR data
  from an authenticated user, it may have performed use-after-free and
  double-free memory access violations while cleaning up the partial
  deserialization results. Other libgssrpc server applications might also
  been vulnerable if they contain insufficiently defensive XDR functions.

  CVE-2014-9422: The MIT krb5 kadmind daemon incorrectly accepted
  authentications to two-component server principals whose first component
  is a left substring of 'kadmin' or whose realm is a left prefix of the
  default realm.

  CVE-2014-9423: libgssrpc applications including kadmind output four or
  eight bytes of uninitialized memory to the network as part of an unused
  'handle' field in replies to clients.

  Bugs fixed:

  - Work around replay cache creation race  (bnc#898439).");

  script_tag(name:"affected", value:"krb5 on SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Desktop 12");

  script_tag(name:"solution", value:"Please install the updated package(s).");
  script_xref(name:"SUSE-SU", value:"2015:0290-2");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone Networks GmbH");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse", "ssh/login/rpms", re:"ssh/login/release=(SLED12\.0SP0|SLES12\.0SP0)");
  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "SLED12.0SP0") {
  if(!isnull(res = isrpmvuln(pkg:"krb5", rpm:"krb5~1.12.1~9.1", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-32bit", rpm:"krb5-32bit~1.12.1~9.1", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-client", rpm:"krb5-client~1.12.1~9.1", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-client-debuginfo", rpm:"krb5-client-debuginfo~1.12.1~9.1", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.12.1~9.1", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-debuginfo-32bit", rpm:"krb5-debuginfo-32bit~1.12.1~9.1", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-debugsource", rpm:"krb5-debugsource~1.12.1~9.1", rls:"SLED12.0SP0"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "SLES12.0SP0") {
  if(!isnull(res = isrpmvuln(pkg:"krb5", rpm:"krb5~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-32bit", rpm:"krb5-32bit~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-client", rpm:"krb5-client~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-client-debuginfo", rpm:"krb5-client-debuginfo~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-debuginfo", rpm:"krb5-debuginfo~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-debuginfo-32bit", rpm:"krb5-debuginfo-32bit~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-debugsource", rpm:"krb5-debugsource~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-doc", rpm:"krb5-doc~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-kdb-ldap", rpm:"krb5-plugin-kdb-ldap~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-kdb-ldap-debuginfo", rpm:"krb5-plugin-kdb-ldap-debuginfo~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-otp", rpm:"krb5-plugin-preauth-otp~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-otp-debuginfo", rpm:"krb5-plugin-preauth-otp-debuginfo~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-pkinit", rpm:"krb5-plugin-preauth-pkinit~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-plugin-preauth-pkinit-debuginfo", rpm:"krb5-plugin-preauth-pkinit-debuginfo~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-server", rpm:"krb5-server~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"krb5-server-debuginfo", rpm:"krb5-server-debuginfo~1.12.1~9.1", rls:"SLES12.0SP0"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);